1ji5: Difference between revisions

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[[Image:1ji5.jpg|left|200px]]<br /><applet load="1ji5" size="350" color="white" frame="true" align="right" spinBox="true"
caption="1ji5, resolution 2.50&Aring;" />
'''Dlp-1 from bacillus anthracis'''<br />


==Overview==
==Dlp-1 from bacillus anthracis==
Bacillus anthracis is currently under intense investigation due to its primary importance as a human pathogen. Particularly important is the development of novel anti-anthrax vaccines, devoid of the current side effects. A novel class of immunogenic bacterial proteins consists of dodecamers homologous to the DNA-binding protein of Escherichia coli (Dps). Two Dps homologous genes are present in the B. anthracis genome. The crystal structures of these two proteins (Dlp-1 and Dlp-2) have been determined and are presented here. They are sphere-like proteins with an internal cavity. We also show that they act as ferritins and are thus involved in iron uptake and regulation, a fundamental function during bacterial growth.
<StructureSection load='1ji5' size='340' side='right'caption='[[1ji5]], [[Resolution|resolution]] 2.50&Aring;' scene=''>
 
== Structural highlights ==
==About this Structure==
<table><tr><td colspan='2'>[[1ji5]] is a 4 chain structure with sequence from [https://en.wikipedia.org/wiki/Bacillus_anthracis Bacillus anthracis]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JI5 OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=1JI5 FirstGlance]. <br>
1JI5 is a [http://en.wikipedia.org/wiki/Single_protein Single protein] structure of sequence from [http://en.wikipedia.org/wiki/Bacillus_anthracis Bacillus anthracis] with <scene name='pdbligand=FE:'>FE</scene> and <scene name='pdbligand=MPD:'>MPD</scene> as [http://en.wikipedia.org/wiki/ligands ligands]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=1JI5 OCA].  
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution|Resolution]] 2.5&#8491;</td></tr>
 
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=FE:FE+(III)+ION'>FE</scene>, <scene name='pdbligand=MPD:(4S)-2-METHYL-2,4-PENTANEDIOL'>MPD</scene></td></tr>
==Reference==
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=1ji5 FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=1ji5 OCA], [https://pdbe.org/1ji5 PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=1ji5 RCSB], [https://www.ebi.ac.uk/pdbsum/1ji5 PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=1ji5 ProSAT]</span></td></tr>
Structure of two iron-binding proteins from Bacillus anthracis., Papinutto E, Dundon WG, Pitulis N, Battistutta R, Montecucco C, Zanotti G, J Biol Chem. 2002 Apr 26;277(17):15093-8. Epub 2002 Feb 8. PMID:[http://ispc.weizmann.ac.il//pmbin/getpm?pmid=11836250 11836250]
</table>
== Function ==
[https://www.uniprot.org/uniprot/DPS2_BACAN DPS2_BACAN] Protects DNA from oxidative damage by sequestering intracellular Fe(2+) ion and storing it in the form of Fe(3+) oxyhydroxide mineral. One hydrogen peroxide oxidizes two Fe(2+) ions, which prevents hydroxyl radical production by the Fenton reaction (By similarity). It is capable of binding and sequestering Fe(2+) ion. Does not bind DNA.
== Evolutionary Conservation ==
[[Image:Consurf_key_small.gif|200px|right]]
Check<jmol>
  <jmolCheckbox>
    <scriptWhenChecked>; select protein; define ~consurf_to_do selected; consurf_initial_scene = true; script "/wiki/ConSurf/ji/1ji5_consurf.spt"</scriptWhenChecked>
    <scriptWhenUnchecked>script /wiki/extensions/Proteopedia/spt/initialview01.spt</scriptWhenUnchecked>
    <text>to colour the structure by Evolutionary Conservation</text>
  </jmolCheckbox>
</jmol>, as determined by [http://consurfdb.tau.ac.il/ ConSurfDB]. You may read the [[Conservation%2C_Evolutionary|explanation]] of the method and the full data available from [http://bental.tau.ac.il/new_ConSurfDB/main_output.php?pdb_ID=1ji5 ConSurf].
<div style="clear:both"></div>
__TOC__
</StructureSection>
[[Category: Bacillus anthracis]]
[[Category: Bacillus anthracis]]
[[Category: Single protein]]
[[Category: Large Structures]]
[[Category: Battistutta, R.]]
[[Category: Battistutta R]]
[[Category: Dundon, W G.]]
[[Category: Dundon WG]]
[[Category: Montecucco, C.]]
[[Category: Montecucco C]]
[[Category: Papinutto, E.]]
[[Category: Papinutto E]]
[[Category: Pitulis, N.]]
[[Category: Pitulis N]]
[[Category: Zanotti, G.]]
[[Category: Zanotti G]]
[[Category: FE]]
[[Category: MPD]]
[[Category: dodecamer]]
[[Category: four-helix bundle]]
 
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